Industrial waste acid distillation and concentration tower

Abstract

The invention belongs to the technical field of acid wastewater treatment, and particularly relates to an industrial waste acid distillation and concentration tower which comprises a tower body, a cover body is rotationally arranged on one side of the upper end of the tower body, a steam pipe is arranged in the middle of one side of the cover body, an electric heating coil is arranged on one side of an inner cavity of the cover body, and a liquid discharging pipe is arranged on one side of the lower end of the tower body. A filter cartridge is rotatably arranged in the middle of the lower end of an inner cavity of the tower body, a fixing block is fixedly connected to one end of the rear side of the upper end face of the mounting ring, a liquid inlet pipe penetrates through and is fixedly connected to the upper side of the fixing block, a liquid inlet is formed in the upper end of the liquid inlet pipe, and the liquid inlet pipe is a hose; and a double-scraping self-cleaning type dredging mechanism for preventing impurities from blocking the filter holes is arranged on the tower body. According to the method disclosed by the invention, impurities in the waste acid are removed in a manner of firstly filtering and then distilling and concentrating, so that the condition that the impurities in the waste acid react with steam generated in the distilling process to form a new compound and further influence the purity and the quality of a distilled product is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of acid wastewater treatment, in particular to an industrial waste acid distillation and concentration tower. Background Art

[0002] Industrial waste acid refers to waste acidic substances generated in the industrial production process, usually from processes such as nitration, esterification, sulfonation, alkylation, catalysis and gas drying of organic matter, or specific processes such as titanium dioxide production, steel pickling and gas drying. Since industrial waste acid and waste liquid contain more water, the concentration of waste acid and waste liquid is low and cannot be used. However, industrial waste acid can be purified by distillation for reuse.

[0003] The patent with the announcement number CN220537527U discloses a waste acid concentration and distillation system, including a distillation mechanism, a vacuum extraction mechanism and a heating and refrigeration device; the distillation mechanism includes a distillation kettle, a heat exchange tube, a wing-and-tube air-cooled condenser and a distilled water collection tank; the heat exchange tube is arranged at the lower end of the distillation kettle, and is used to distill and heat the waste acid in the distillation kettle. The heating and refrigeration device of the patent can realize the simultaneous use of heating and refrigeration, firstly heat the waste acid in the distillation kettle, and under the negative pressure and high vacuum, the boiling point of the waste acid in the distillation kettle is reduced and gasified, and the water vapor in the distillation kettle rises to the wing-and-tube air-cooled condenser to liquefy the water vapor after cooling, and then the vacuum extraction mechanism extracts the non-condensable gas of the waste acid in the distillation kettle while vacuumizing the distillation kettle, thereby realizing the concentration and purification of the waste acid with a high water content in the industrial waste phosphoric acid waste liquid, and achieving the purpose of waste acid reuse, with a simple structure and significant energy saving.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] Although waste acid with a high water content can be concentrated and purified to achieve the purpose of waste acid recycling, since the waste acid may contain some impurities from the production process, these impurities may react with the steam generated in the distillation process during the distillation concentration process to form new compounds, thereby reducing the purity of the distillation product and the final quality of the distillation product.

[0006] To this end, the present invention provides an industrial waste acid distillation and concentration tower. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an industrial waste acid distillation and concentration tower.

[0008] The technical solution adopted by the present invention to solve the technical problem is: an industrial waste acid distillation and concentration tower, comprising a tower body, a cover body is rotatably arranged on one side of the upper end of the tower body, a steam pipe is arranged in the middle of one side of the cover body, an electric heating coil is arranged on one side of the inner cavity of the cover body, a liquid discharge pipe is arranged on one side of the lower end of the tower body, a filter cartridge is rotatably arranged in the middle of the lower end of the inner cavity of the tower body, a plurality of filter holes are arranged on the filter cartridge, a mounting ring is sleeved and fixedly connected on the upper side of the tower body, a fixed block is fixedly connected on one end of the rear side of the upper end face of the mounting ring, a liquid inlet pipe is penetrated and fixedly connected on the upper side of the fixed block, a liquid inlet port is arranged on the upper end of the liquid inlet pipe, the liquid inlet pipe is a hose, and a double scraping self-cleaning dredging mechanism for preventing impurities from clogging the filter holes is arranged on the tower body;

[0009] The double-scraping self-cleaning dredging mechanism includes two sliding rods slidably connected to the upper and lower sides of the rear end of the tower body, the front end of the two sliding rods is fixedly connected to a dredging plate, and the front end surface of the dredging plate is fixedly connected to a plurality of dredging columns matching the filter hole specifications, the dredging columns can pass through the filter holes and fit against the hole walls of the filter holes.

[0010] Preferably, a motor five is fixedly connected to the middle part of the lower end surface of the tower body, and an output end of the motor five is fixedly connected to the middle part of the lower end surface of the filter cartridge.

[0011] Preferably, a second electric push rod is fixedly connected to the middle of the rear side of the tower body, a transverse plate is fixedly connected to the piston end of the second electric push rod, and both upper and lower sides of the front end surface of the transverse plate are fixedly connected to the rear end of the second slide rod.

[0012] Preferably, a fixing plate is fixedly connected to the middle of the upper end of the rear side of the inner cavity of the tower body, a sliding rod 1 is slidably connected to both left and right ends of the front side of the fixing plate, and a scraper 2 is fixedly connected to a lower end of the sliding rod.

[0013] Preferably, an electric push rod 1 is fixedly connected to the middle part of the front side of the upper end surface of the fixed plate, and the piston end of the electric push rod 1 is fixedly connected to the middle part of the upper end surface of the scraper 2.

[0014] Preferably, support rods are fixedly connected to the middle parts of the left and right sides of the upper end surface of the mounting ring, a slide plate is fixedly connected to the upper end of the support rod, a mounting plate is slidably connected to the inner side of the slide plate, connecting rod one is rotatably provided on the left and right sides of the mounting plate, a connecting rod two is rotatably provided on a lower end of the connecting rod, a displacement plate is rotatably provided on the lower end of the connecting rod two, sliders are slidably connected to the left and right sides of the displacement plate, a rotating rod is rotatably provided at the lower end of the slider, a collecting box is fixedly connected to the lower end of the rotating rod, and a filter is provided on the lower side of the collecting box.

[0015] Preferably, the front end surface of the left slide plate is fixedly connected with a motor four, the output end of the motor four is fixedly connected with a threaded rod one, the front and rear ends of the threaded rod one are rotatably set on the slide plate, the threaded rod one is threadedly connected to the mounting plate, the left side of the front end surface of the mounting plate is fixedly connected with a motor three, and the output end of the motor three is fixedly connected to the upper end of the connecting rod one on the left.

[0016] Preferably, the upper end of the slider is threadedly connected to a bidirectional threaded rod, both left and right ends of the bidirectional threaded rod are rotatably set on a displacement plate, the right end of the displacement plate is fixedly connected to motor 2, and the output end of motor 2 is fixedly connected to the right end of the bidirectional threaded rod.

[0017] Preferably, a motor 1 is fixedly connected to the lower side of the front end surface of the slider, and an output end of the motor 1 is fixedly connected to the upper end of the rotating rod.

[0018] Preferably, one side of the upper end of the rotating rod is slidably connected to a T-shaped plate, the front and rear sides of the lower end of the T-shaped plate are fixedly connected to connecting rods, the lower end of the connecting rod is fixedly connected to a scraper 1, and the scraper 1 is slidably connected to the collecting box, the upper end of the rotating rod is fixedly connected to a fixed block, the upper end surface of the fixed block is fixedly connected to an electric push rod 3, and the piston end of the electric push rod 3 is fixedly connected to the middle part of the lower end surface of the T-shaped plate.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The industrial waste acid distillation and concentration tower described in the present invention removes impurities in the waste acid by filtering first and then distilling and concentrating, thereby avoiding the reaction of impurities in the waste acid with the steam generated during the distillation process to form new compounds, thereby affecting the purity and quality of the distillation product. In addition, when the filter holes are blocked, the filter cartridge can be driven to rotate intermittently, and each time the filter cartridge stops rotating, a row of filter holes are aligned with multiple dredging columns, and then the transverse plate is driven to move forward, and the dredging columns move and pass through the filter holes to push off the impurities blocked on the filter hole walls and attached to the filter holes. Then the dredging columns are reset, and the filter cartridge continues to rotate. By repeating the above operations, the dredging effect can be achieved for multiple filter holes, thereby avoiding the situation where impurities are blocked in the filter holes and then affecting the subsequent filtering effect of the waste acid.

[0021] 2. In the industrial waste acid distillation and concentration tower described in the present invention, every time the dredging column realizes a pushing action, before resetting, the scraper 2 can be driven to move, and its edge can be used to scrape off the impurities attached to the surface of the dredging column and drop them into the filter cartridge, and then the dredging column is driven to reset. This can avoid the impurities falling into the tower body when the dredging column is reset, and mixing with the waste acid again, thereby affecting the final quality of the distillation product.

[0022] 3. The industrial waste acid distillation and concentration tower described in the present invention, when a certain amount of impurities are accumulated at the bottom of the filter cartridge, the impurities can be pushed to the middle of the filter cartridge by a scraper, and then the two collecting boxes are driven close to each other to collect the impurities, and then the collecting boxes are driven out of the tower body to discharge the collected impurities, thus realizing self-cleaning of the impurities accumulated at the bottom of the filter cartridge, further avoiding the situation where the filter holes are blocked by excessive accumulation of impurities, and the cleaning process does not affect the normal addition of waste acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the complete three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a three-dimensional structure of a half-section of a tower body of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the half-section of the filter cartridge;

[0027] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0028] Figure 5 It is a schematic diagram of the partial three-dimensional structure inside the tower;

[0029] Figure 6 It is a schematic diagram of the local three-dimensional structure at the mounting plate;

[0030] Figure 7 It is a schematic diagram of the local three-dimensional structure at the liquid inlet;

[0031] Figure 8 It is a schematic diagram of the local three-dimensional structure of the collection box;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of five parts of the motor;

[0033] Fig.10 It is a schematic diagram of the local three-dimensional structure of the scraper at two locations;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the cover.

[0035] In the figure: 1, tower body; 2, mounting ring; 3, mounting plate; 4, support rod; 5, liquid inlet; 6, liquid inlet pipe; 7, slide plate; 8, filter cartridge; 9, filter hole; 10, displacement plate; 11, two-way threaded rod; 12, collection box; 13, scraper 1; 14, slider; 15, motor 1; 16, motor 2; 17, rotating rod; 18, T-plate; 19, electric push rod 3; 20, connecting rod; 21, fixing block; 2 2. Motor three; 23. Motor four; 24. Threaded rod one; 25. Connecting rod one; 26. Connecting rod two; 27. Motor five; 28. Drain pipe; 29. ​​Scraper two; 30. Electric push rod one; 31. Slide rod one; 32. Fixed plate; 33. Transverse plate; 34. Electric push rod two; 35. Slide rod two; 36. Unclogging plate; 37. Unclogging column; 38. Filter; 39. Cover; 40. Steam pipe; 41. Electric heating coil. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please refer to Figure 1-Figure 11 The present invention provides a technical solution: an industrial waste acid distillation and concentration tower, comprising a tower body 1, a cover body 39 is rotatably provided on one side of the upper end of the tower body 1, a steam pipe 40 is provided in the middle of one side of the cover body 39, an electric heating coil 41 is provided on one side of the inner cavity of the cover body 39, a liquid discharge pipe 28 is provided on one side of the lower end of the tower body 1, a filter cartridge 8 is rotatably provided in the middle of the lower end of the inner cavity of the tower body 1, a plurality of filter holes 9 are provided on the filter cartridge 8, a mounting ring 2 is sleeved and fixedly connected on the upper side of the tower body 1, a fixed block 21 is fixedly connected on one end of the rear side of the upper end surface of the mounting ring 2, a liquid inlet pipe 6 is penetrated and fixedly connected on the upper side of the fixed block 21, a liquid inlet port 5 is provided on the upper end of the liquid inlet pipe 6, the liquid inlet pipe 6 is a hose, and a double scraping self-cleaning dredging mechanism is provided on the tower body 1 to prevent impurities from clogging the filter holes 9;

[0038] The double-scraping self-cleaning dredging mechanism includes a sliding rod 35 slidably connected to the upper and lower sides of the rear end of the tower body 1, and a dredging plate 36 is fixedly connected to the front end of the sliding rod 35. A plurality of dredging columns 37 matching the specifications of the filter holes 9 are fixedly connected to the front end surface of the dredging plate 36. The dredging columns 37 can pass through the filter holes 9 and fit against the hole walls of the filter holes 9.

[0039] In this embodiment, Figure 5 and Fig. 9 As shown, a motor 5 27 is fixedly connected to the middle of the lower end surface of the tower body 1, and the output end of the motor 5 27 is fixedly connected to the middle of the lower end surface of the filter cartridge 8;

[0040] The middle part of the rear side of the tower body 1 is fixedly connected with an electric push rod 2 34, the piston end of the electric push rod 2 34 is fixedly connected with a transverse plate 33, and the upper and lower sides of the front end surface of the transverse plate 33 are fixedly connected to the rear end of the slide rod 2 35;

[0041] Specifically, the cover 39 is opened, the liquid inlet pipe 6 is moved and its end is extended into the filter cartridge 8, the waste acid is added through the liquid inlet 5, and flows into the filter cartridge 8 after passing through the liquid inlet pipe 6, and the impurities in the waste acid are filtered by the filter hole 9. At the same time, the filter cartridge 8 can be driven to rotate by the motor 5 27, and the waste acid can be further thrown out under the action of centrifugal force, thereby improving the filtering effect. The filtered waste acid flows into the tower body 1, and then the liquid inlet pipe 6 is moved out of the tower body 1, and then the cover 39 is closed, and the waste acid is heated by the electric heating coil 41 to evaporate the water in the waste acid, thereby realizing the concentration of the waste acid. At the same time, the water vapor will be discharged from the steam pipe 40. After the distillation and concentration is completed, the waste acid can be discharged by opening the valve of the discharge pipe 28, so that the impurities in the waste acid can be removed by filtering first and then distilling and concentrating, thereby avoiding the impurities in the waste acid from reacting with the steam generated in the distillation process to form new compounds. The situation of substances is improved, thereby improving the purity and quality of the distillation product. In addition, since the filter hole 9 may be blocked by impurities when filtering impurities, when waste acid is continuously added to the filter cartridge 8, it will affect the subsequent filtering effect of waste acid. Therefore, in order to avoid this situation, when the filter hole 9 is blocked, the motor 5 27 can be used to drive the filter cartridge 8 to rotate intermittently, and each time the filter cartridge 8 stops rotating, a row of filter holes 9 is aligned with multiple dredging columns 37, and then the electric push rod 2 34 is started, and drives the transverse plate 33 to move forward, so that the slide rod 2 35 slides on the tower body 1, so that the dredging column 37 moves and passes through the filter hole 9, and the impurities blocked and attached to the filter hole 9 are pushed off, and then the dredging column 37 is reset, the filter cartridge 8 continues to rotate, and then the above operation is repeated, and the dredging effect of multiple filter holes 9 can be achieved, thereby avoiding the situation that impurities are blocked at the filter hole 9, thereby affecting the subsequent filtering effect of waste acid.

[0042] In this embodiment, Figure 5 and Fig.10 As shown, a fixed plate 32 is fixedly connected to the middle of the upper end of the inner cavity of the tower body 1, and a slide bar 31 is slidably connected to both the left and right ends of the front side of the fixed plate 32, and a scraper 29 is fixedly connected to the lower end of the slide bar 31;

[0043] An electric push rod 30 is fixedly connected to the middle of the front side of the upper end surface of the fixed plate 32, and the piston end of the electric push rod 30 is fixedly connected to the middle of the upper end surface of the scraper 2 29;

[0044] Specifically, in the above embodiment, when the filter hole 9 is cleared by the clearing column 37, impurities may adhere to the front end surface of the clearing column 37. When the clearing column 37 is reset, these impurities may fall into the inside of the tower body 1 and mix with the filtered waste acid again, thereby affecting the quality of the distillation product. Therefore, in order to avoid this problem, when the clearing column 37 realizes a pushing action and before resetting, the electric push rod 1 30 is started to drive the scraper 2 29 to descend, and the slide bar 1 31 slides on the fixed plate 32. The edge of the scraper 29 is used to scrape off the impurities attached to the surface of the clearing column 37 and drop them into the filter cartridge 8. Then the clearing column 37 is driven to reset. This can avoid the situation where the impurities fall into the inside of the tower body 1 when the clearing column 37 is reset, and mix with the waste acid again, thereby affecting the final quality of the distillation product.

[0045] In this embodiment, Figure 1-Figure 4 , Figure 6 and Figure 8 As shown, the middle parts of the left and right sides of the upper end surface of the mounting ring 2 are fixedly connected with support rods 4, the upper ends of the support rods 4 are fixedly connected with slide slot plates 7, the inner sides of the slide slot plates 7 are slidably connected with the mounting plate 3, the left and right sides of the mounting plate 3 are rotatably provided with connecting rods 1 25, the lower ends of the connecting rods 1 25 are rotatably provided with connecting rods 26, the lower ends of the connecting rods 26 are rotatably provided with displacement plates 10, the left and right sides of the displacement plate 10 are slidably connected with sliders 14, the lower ends of the sliders 14 are rotatably provided with rotating rods 17, the lower ends of the rotating rods 17 are fixedly connected with the collecting box 12, and the lower side of the collecting box 12 is provided with a filter screen 38;

[0046] The front end surface of the left chute plate 7 is fixedly connected with a motor 4 23, the output end of the motor 4 23 is fixedly connected with a threaded rod 1 24, the front and rear ends of the threaded rod 1 24 are rotatably arranged on the chute plate 7, the threaded rod 1 24 is threadedly connected with the mounting plate 3, the left side of the front end surface of the mounting plate 3 is fixedly connected with a motor 3 22, and the output end of the motor 3 22 is fixedly connected with the upper end of the left connecting rod 1 25;

[0047] The upper end of the slider 14 is threadedly connected with a bidirectional threaded rod 11, and both left and right ends of the bidirectional threaded rod 11 are rotatably arranged on the displacement plate 10. The right end of the displacement plate 10 is fixedly connected with a motor 2 16, and the output end of the motor 2 16 is fixedly connected to the right end of the bidirectional threaded rod 11;

[0048] The lower side of the front end of the slider 14 is fixedly connected with a motor 15, and the output end of the motor 15 is fixedly connected with the upper end of the rotating rod 17;

[0049] A T-shaped plate 18 is slidably connected to one side of the upper end of the rotating rod 17, and a connecting rod 20 is fixedly connected to both the front and rear sides of the lower end face of the T-shaped plate 18, and a scraper 13 is fixedly connected to the lower end of the connecting rod 20, and the scraper 13 is slidably connected to the collecting box 12. A fixed block 21 is fixedly connected to the upper end face of the fixed block 21, and an electric push rod 3 19 is fixedly connected to the upper end face of the fixed block 21, and the piston end of the electric push rod 3 19 is fixedly connected to the middle part of the lower end face of the T-shaped plate 18;

[0050] Specifically, in the above embodiment, although the filter cartridge 8 can be used to filter out impurities in the waste acid, the impurities still remain inside the filter cartridge 8. When the impurities accumulate to a certain height inside the filter cartridge 8, the filter holes 9 will still be covered, affecting the filtering effect. Moreover, if the waste acid is still continuously injected into the filter cartridge 8, the impurities in the filter cartridge 8 cannot be removed by dumping. Therefore, in order to avoid this situation, when a certain amount of impurities accumulate at the bottom of the filter cartridge 8, the motor 3 22 can be used to drive the connecting rod 1 25 to rotate, so that the connecting rod 26 rotates. When the angle between the two changes, the connecting rod 26 can be rotated. The displacement plate 10 is moved downward, and the lower end surface of the scraper 13 in the initial state is lower than the lower end surface of the collecting box 12, and the bottom of the scraper 13 is in contact with the bottom edge of the inner cavity of the filter cartridge 8. Then, the motor 2 16 is used to drive the bidirectional threaded rod 11 to rotate, so that the two sliders 14 slide simultaneously and approach each other, so that the two scrapers 13 can be approached to each other to scrape the impurities and move the impurities to the bottom center of the filter cartridge 8. Then, the scraping angle of the scraper 13 can be adjusted by driving the filter cartridge 8 to rotate again, until the scraper 13 pushes impurities in multiple directions to the bottom center of the filter cartridge 8. Then, the electric push rod 3 19 is used to drive the T-shaped plate 18 to slide upward, so that the scraper 13 rises, and the bottom of the scraper 13 is flush with the bottom of the collection box 12, and the collection box 12 is driven down again to fit with the bottom of the inner cavity of the filter cartridge 8, and the two collection boxes 12 are driven close to each other until they fit together to clamp the impurities. By first using the scraper 13 to push the impurities toward the center of the filter cartridge 8, and then bringing the collection boxes 12 close to each other, it is avoided that some impurities are pressed by the collection box 12 and cannot be collected, and then the displacement plate 10 is driven to rise, so that the collection box 12 is moved out of the filter cartridge 8, and Moreover, the filter screen 38 can filter out the waste acid. When the collection box 12 is higher than the upper end surface of the tower body 1, the motor 23 is used to drive the threaded rod 24 to rotate, so that the mounting plate 3 slides forward and the collection box 12 is moved away from the top of the tower body 1. Then, the chain is driven to separate the collection boxes 12 again, and the motor 15 is used to drive the two rotating rods 17 to rotate in different directions at the same time, so that the impurities in the collection box 12 can be poured out, so that the self-cleaning of the impurities accumulated at the bottom of the filter cartridge 8 can be realized, and the situation of excessive accumulation of impurities and clogging of the filter hole 9 is further avoided. Moreover, the cleaning process does not affect the normal addition of waste acid.

[0051] Working principle: open the cover 39, move the liquid inlet pipe 6 and extend its end into the filter cartridge 8, add the waste acid through the liquid inlet 5, and flow into the filter cartridge 8 after passing through the liquid inlet pipe 6, and use the filter hole 9 to filter the impurities in the waste acid. At the same time, the motor 27 can be used to drive the filter cartridge 8 to rotate, so that the residual waste acid in the impurities can be further thrown out through the filter hole 9 under the action of centrifugal force, thereby improving the filtering effect. The filtered waste acid flows into the tower body 1, and then the liquid inlet pipe 6 is moved out of the tower body 1, and then the cover 39 is closed, and the electric heating coil 41 is used to heat the waste acid to evaporate the water in the waste acid, thereby realizing the concentration of the waste acid. At the same time, the water vapor will be discharged from the steam pipe 40. After the distillation and concentration is completed, the waste acid can be discharged by opening the valve of the discharge pipe 28. The acid is discharged, so that the impurities in the waste acid can be removed by filtering first and then distilling and concentrating, avoiding the situation that the impurities in the waste acid react with the steam generated in the distillation process to form new compounds, thereby improving the purity and quality of the distillation product. In addition, since the filter hole 9 is blocked by impurities when filtering impurities, when the waste acid is continuously added to the filter cartridge 8, it will affect the filtering effect of the subsequent waste acid. Therefore, in order to avoid this situation, when the filter hole 9 is blocked, the motor 5 27 can be used to drive the filter cartridge 8 to rotate intermittently, and each time the filter cartridge 8 stops rotating, a row of filter holes 9 is aligned with multiple dredging columns 37, and then the electric push rod 2 34 is started, and drives the transverse plate 33 to move forward, so that the slide rod 2 35 is moved on the tower body. 1, so that the dredging column 37 moves and passes through the filter hole 9, and the impurities stuck on the filter hole 9 and attached are pushed off, and then the dredging column 37 is reset, and the filter cartridge 8 continues to rotate, and then the above operation is repeated, and the dredging effect can be achieved for multiple filter holes 9, thereby avoiding the situation where impurities are blocked in the filter hole 9, thereby affecting the subsequent filtering effect of the waste acid, and when the dredging column 37 achieves a pushing action and before resetting, the electric push rod 1 30 is started to drive the scraper 29 to descend, and the slide bar 1 31 slides on the fixed plate 32, and the edge of the scraper 29 is used to scrape off the impurities attached to the surface of the dredging column 37, and drop them into the filter cartridge 8, and then the dredging column 37 is driven to reset, which can avoid that when the dredging column 37 is reset, the impurities fall into the inside of the tower body 1, and then When a certain amount of impurities are accumulated at the bottom of the filter cartridge 8, the motor 3 22 can be used to drive the connecting rod 1 25 to rotate, so that the connecting rod 2 26 can be rotated. When the angle between the two changes, the displacement plate 10 can be moved downward, and the lower end surface of the scraper 13 in the initial state is lower than the lower end surface of the collecting box 12, and the bottom of the scraper 13 is in contact with the bottom edge of the inner cavity of the filter cartridge 8. Then, the motor 2 16 is used to drive the bidirectional threaded rod 11 to rotate, so that the two sliders 14 slide at the same time and approach each other, so that the two scrapers 13 can be approached to each other to scrape the impurities and move the impurities to the center position of the bottom of the filter cartridge 8. Then, the scraping angle of the scraper 13 can be adjusted by driving the filter cartridge 8 to rotate again.Until the scraper 13 pushes the impurities in multiple directions to the bottom center of the filter cartridge 8, and then the electric push rod 3 19 is used to drive the T-plate 18 to slide upward, so that the scraper 13 rises, and the bottom of the scraper 13 is flush with the bottom of the collection box 12, and the collection box 12 is driven down again to fit with the bottom of the inner cavity of the filter cartridge 8, and the two collection boxes 12 are driven to approach each other until they fit together, so as to clamp the impurities. By first using the scraper 13 to push the impurities to the center of the filter cartridge 8, and then bringing the collection boxes 12 close to each other, it is avoided that some impurities are pressed by the collection box 12 and cannot be collected, and then the displacement plate 10 is driven to rise, so that the collection box 12 The box 12 is removed from the filter cartridge 8, and the filter screen 38 can filter out the waste acid. When the collection box 12 is higher than the upper end surface of the tower body 1, the motor 23 is used to drive the threaded rod 24 to rotate, so that the mounting plate 3 slides forward, and the collection box 12 is removed from the top of the tower body 1. Then the chain is driven to separate the collection boxes 12 again, and the motor 15 is used to drive the two rotating rods 17 to rotate in different directions at the same time, so that the impurities in the collection box 12 can be poured out, which can realize the self-cleaning of the impurities accumulated at the bottom of the filter cartridge 8, further avoiding the situation where the filter hole 9 is blocked by excessive accumulation of impurities, and the cleaning process does not affect the normal addition of waste acid.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An industrial waste acid distillation and concentration tower, comprising a tower body (1), characterized in that: A cover body (39) is rotatably provided on one side of the upper end of the tower body (1), a steam pipe (40) is provided in the middle of one side of the cover body (39), an electric heating coil (41) is provided on one side of the inner cavity of the cover body (39), a liquid discharge pipe (28) is provided on one side of the lower end of the tower body (1), a filter cartridge (8) is rotatably provided in the middle of the lower end of the inner cavity of the tower body (1), a plurality of filter holes (9) are provided on the filter cartridge (8), a mounting ring (2) is sleeved and fixedly connected on the upper side of the tower body (1), a fixed block (21) is fixedly connected to one end of the upper end surface of the mounting ring (2), a liquid inlet pipe (6) is passed through and fixedly connected on the upper side of the fixed block (21), a liquid inlet port (5) is provided on the upper end of the liquid inlet pipe (6), the liquid inlet pipe (6) is a hose, and a double scraping self-cleaning dredging mechanism is provided on the tower body (1) to prevent impurities from clogging the filter holes (9); The double-scraping self-cleaning dredging mechanism comprises a second slide bar (35) slidably connected to the upper and lower sides of the rear end of the tower body (1); a dredging plate (36) is fixedly connected to the front end of the second slide bar (35); a plurality of dredging columns (37) matching the specifications of the filter holes (9) are fixedly connected to the front end surface of the dredging plate (36); the dredging columns (37) can pass through the filter holes (9) and fit the hole walls of the filter holes (9).

2. The industrial waste acid distillation and concentration tower according to claim 1, characterized in that: A motor five (27) is fixedly connected to the middle part of the lower end surface of the tower body (1), and an output end of the motor five (27) is fixedly connected to the middle part of the lower end surface of the filter cartridge (8).

3. The industrial waste acid distillation and concentration tower according to claim 1, characterized in that: The middle part of the rear side of the tower body (1) is fixedly connected with an electric push rod 2 (34), the piston end of the electric push rod 2 (34) is fixedly connected with a transverse plate (33), and the upper and lower sides of the front end surface of the transverse plate (33) are fixedly connected to the rear end of the second slide rod (35).

4. The industrial waste acid distillation and concentration tower according to claim 1, characterized in that: A fixing plate (32) is fixedly connected to the middle of the upper end of the inner cavity of the tower body (1) at the rear side, and a sliding rod (31) is slidably connected to both left and right ends of the front side of the fixing plate (32), and a scraper plate (29) is fixedly connected to the lower end of the sliding rod (31).

5. The industrial waste acid distillation and concentration tower according to claim 4, characterized in that: An electric push rod 1 (30) is fixedly connected to the middle of the front side of the upper end surface of the fixed plate (32), and the piston end of the electric push rod 1 (30) is fixedly connected to the middle of the upper end surface of the scraper plate 2 (29).

6. The industrial waste acid distillation and concentration tower according to claim 1, characterized in that: The middle parts of the left and right sides of the upper end surface of the mounting ring (2) are fixedly connected with support rods (4), the upper ends of the support rods (4) are fixedly connected with a slide plate (7), the inner side of the slide plate (7) is slidably connected with a mounting plate (3), the left and right sides of the mounting plate (3) are rotatably provided with connecting rods 1 (25), the lower end of the connecting rod 1 (25) is rotatably provided with connecting rods 2 (26), the lower end of the connecting rod 2 (26) is rotatably provided with a displacement plate (10), the left and right sides of the displacement plate (10) are slidably connected with sliders (14), the lower end of the slider (14) is rotatably provided with a rotating rod (17), the lower end of the rotating rod (17) is fixedly connected with a collection box (12), and a filter screen (38) is provided at the lower side of the collection box (12).

7. The industrial waste acid distillation and concentration tower according to claim 6, characterized in that: The front end surface of the left side slide plate (7) is fixedly connected with a motor four (23), the output end of the motor four (23) is fixedly connected with a threaded rod one (24), the front and rear ends of the threaded rod one (24) are rotatably arranged on the slide plate (7), the threaded rod one (24) is threadedly connected to the mounting plate (3), the left side of the front end surface of the mounting plate (3) is fixedly connected with a motor three (22), and the output end of the motor three (22) is fixedly connected to the upper end of the left side connecting rod one (25).

8. The industrial waste acid distillation and concentration tower according to claim 6, characterized in that: The upper end of the slider (14) is threadedly connected to a bidirectional threaded rod (11), the left and right ends of the bidirectional threaded rod (11) are rotatably arranged on the displacement plate (10), the right end of the displacement plate (10) is fixedly connected to a second motor (16), and the output end of the second motor (16) is fixedly connected to the right end of the bidirectional threaded rod (11).

9. The industrial waste acid distillation and concentration tower according to claim 6, characterized in that: A motor 1 (15) is fixedly connected to the lower side of the front end surface of the slider (14), and the output end of the motor 1 (15) is fixedly connected to the upper end of the rotating rod (17).

10. The industrial waste acid distillation and concentration tower according to claim 6, characterized in that: One side of the upper end of the rotating rod (17) is slidably connected to a T-shaped plate (18); the lower end of the T-shaped plate (18) is fixedly connected to connecting rods (20) on both the front and rear sides; the lower end of the connecting rod (20) is fixedly connected to a scraper plate (13); the scraper plate (13) is slidably connected to the collection box (12); the upper end of the rotating rod (17) is fixedly connected to a fixed block (21); the upper end surface of the fixed block (21) is fixedly connected to an electric push rod (19); the piston end of the electric push rod (19) is fixedly connected to the middle part of the lower end surface of the T-shaped plate (18).

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